@misc{indiciae46d71df4bff6,
  title = {Single Piezo-Actuator Rotary-Hammering (SPaRH) Drill},
  author = {Sherrit, Stewart and Domm, Lukas and Bao, Xiaoqi and Bar-Cohen, Yoseph and Chang, Zensheu and Badescu, Mircea},
  year = {2012},
  url = {https://ntrs.nasa.gov/citations/20130000397},
  note = {Source identifier: 20130000397}
}